Subject: Re: [boost] [typeof] Weird VC++ compiler bug
From: Andrzej Krzemienski (akrzemi1_at_[hidden])
Date: 2015-05-27 09:53:29
2015-05-23 18:33 GMT+02:00 Steven Watanabe <watanabesj_at_[hidden]>:
> On 05/23/2015 09:44 AM, Peter Dimov wrote:
> > Why doesn't Typeof use decltype on VS 2013?
> Probably because Typeof hasn't had a maintainer
> since before decltype. It doesn't appear to
> use decltype for any compiler.
I don't think it can. The semantics of BOOST_TYPEOF is that of:
auto x = expr;
The semantics of decltype are quire different. For instance, auto and
BOOST_TYPEOF and GCC's __typeof__ never deduce references -- always values.
decltype on the other hand can deduce references.
I guess BOOST_TYPEOF could be implemented with decltype(auto).
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